Doubled image while projecting video on surface
Perhaps you forgot to unwrap the mesh.

Tutorial

https://www.youtube.com/watch?v=Tovu1A0LxeQ

In edit mode Unwrap your plane.  Select all vertices before you Unwrap.
Your UV Mapping appears incorrect.
Perform the UV Map again.  Have exactly 1 UV Map.

The time required for this is 88 seconds or less.

BSE and famous video websites have information on the topics of 

Blender UV Map and Blender Unwrap.

By searching you can find a tutorial on those topics if necessary.